Current Transformers 4Mc - Siemens NXPLUS C Installation And Operating Instructions Manual

Features
Mounting locations
Current transformer types
802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11
Fig. 23: Mounting the test adapter on voltage transformer
4MT3
The test adapter can be procured from the regional Siemens representative.
9.7

Current transformers 4MC

• According to IEC 60044-1 and VDE 0414 Part 1
• Designed as ring-core current transformers:
- Ring core as carrier of secondary winding
- Main circuit corresponds to primary winding
• Arranged outside the primary enclosure (switchgear vessel) due to single-pole design of
cable connection and busbar
• Free of dielectrically stressed cast-resin parts (due to design)
• Around the busbar
• At the panel connection
• Around the cable
• Busbar current transformer
- Inside diameter of transformer 56 mm
- Usable height for 1250 A busbar: 170 mm
- Usable height for 1600 A, 2000 A, 2500 A busbar: 90 mm
• Feeder current transformer
- Inside diameter of transformer 106 mm
- Max. usable height 214 mm
Description
① Secondary lead
② Connection of measuring
equipment
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